In 2006, which was the last time the AVMA put together the sourcebook, Oklahoma again made the top 10 list of dog owners, ranking 2nd with 55.8 percent of households owning a dog.

The survey is conducted by the AVMA every five years and always includes a breakdown of pet ownership by state. The most recent survey, conducted in 2012 but based on December 31, 2011 numbers, reveals that the top 10 pet-owning states are: Vermont where 70.8 percent of households owned a pet, New Mexico with 67.6 percent, South Dakota with 65.6 percent, Oregon with 63.6 percent, Maine with 62.9 percent, Washington with 62.7 percent, Arkansas with 62.4 percent, West Virginia with 62.1 percent, Idaho with 62 percent, and Wyoming with 61.8 percent.

The 10 states in 2011 with the lowest percentage of pet-owning households are: Rhode Island where 53 percent of households owned a pet, Minnesota with 53 percent, California with 52.9 percent, Maryland with 52.3 percent, Illinois with 51.8 percent, Nebraska with 51.3 percent, Utah with 51.2 percent, New Jersey with 50.7 percent, New York with 50.6 percent, and Massachusetts with 50.4 percent. The District of Columbia had a far lower rate of pet ownership at 21.9 percent.

The report indicates that, between 2006 and 2011, the percentage of households that made no trips at all to the veterinarian increased by 8 percent for dog owners. Overall, about 81 percent of dog owning households made at least one visit to the veterinarian in 2011, down 1.7 percent from 2006.